Embroidering-machine.



M. SGHOENFELD 6: B. WBTZSTEIN.

EMBROIDERING MACHINE.

APPLICATION FILED FEB-12,1913.

11,124, 1 76. Patented Jan. 5, 1915.

4 8HEETSSHEET 1.

INVENTORS MGHOENFELDBWETSTEAN WITNESSES I ATTOR N EY 1m; nbRRls PE-TERS co.. PHOTO-LITHQ. WASHINGTON. u. c.

M. SGHOENFELD & B. WETZSTEIN.

EMBROIDERING MACHINE.

APPLICATION FILED PEB- 12, 1913.

Patented Jan. 5, 1915.

l,124,1?6. if

THE NORRIS PETERS 60.. FHmO-LITHQ. WASHINGTON. D. C.

M. SGHOENFELD &: B. WETZSTEIN.

EMBROIDERING MACHINE.

APPLICATION FILED FEB 12, 1913.

Patented Jan. 5, 1915.

4 SHEETSSHEET 3.

lNvENToRs i lbcHoam-EwgE1WETzaTE|- ATTORNEY Noam: Peri-9Q CO.. FHOTO-LITHO WASHINGTON. D. C.

M. SCHOENFELD}; B. WETZSTEIN. EMBROIDEEING MACHINE,

APPLICATION FILED IEBA 12,1918.i

1,1%,176. Patented Jan. 5, 1915 4 SHBETSSHEET 4 AT-m R may THE NORRIS PETERS 60., PHOTc-LITHO.. WASHINGTON. D. l.

TED %TATE% PATENT FFIE MORRIS SCI-IOENFELID AND BRUNO WETZSTEIN, OF BORSGIIACH, SWITZERLAND.

EMBROI DERING-IVEACHINE.

Application filed February 12, 1913.

To all whom it may concern:

Be it known that we, MoRRIs SGHOENFELD, a citizen of the United States, and BRUNO WVETzs'rmN, a subject of the Emperor of Germany, both residing at Rorschach, Canton of St. Gall, Switzerland, have invented new and useful Improvements in Embroidering-Machines, of which the following is a full, clear, and exact specification.

This invention relates to an improvement in embroidery machines according to which the embroidery frame comprises at least one horizontally guided longitudinal movable carrier which is not displaceable in the vertical direction and also several fabric carrying supports supported independently from the former, but guided thereon vertically, and is moreover so connected with the driving mechanism serving for its motion, that the horizontal motion components are transmitted to the longitudinal carrier together with the fabric carrying supports guided thereon, while the vertical motion components on the other hand are only transmitted to the fabric carrying supports. In consequence of this arrangement, there remains in regard to the motions in the vertical direction, a portion of the embroidery frame (namely the above mentioned longitudinal carrier) at rest by reason of its horizontal guidance and only the fabric carrying supports are adjusted in the vertical direction. The result of this arrangement is that the weights which must takepart in the upward movement are materially smaller than in cases where the entire embrodery frame must participate in the vertical motions, so that consequently, the counterweights which are used for balancing the parts moving vertically become materially smaller, and moreover the effects of the weight in general are less injurious.

The present invention proves itself to be especially advantageous in the case of the large automatic embroidery machines which are now coming more and more into use, in which the weights of the embroidery frame to be balanced and moved by the jacquard apparatus are already very great.

The accompanying drawings illustrate several constructions of the invention as follows:

Figure 1 shows a partial front elevation of an automatic embroidery machine constructed in accordance with this invention. Fig. 2 shows a vertical section on the line Specification of Letters Patent.

Patented Jan. 5, 1915.

Serial No. 748,011.

A-B and Fig. 3 shows such a section on the line CD of Fig. 1. Fig. 4 shows a partial front elevation of a second constructional example. Fig. 5 shows a vertical section on the line EF of Fig. l. Figs. 6, 7, 8 and 9 show various modifications of the construction of the fabric carrying supports.

It is necessary first to describe the construction shown in Figs. 1 to 3. In bearings 1 several frame supporting levers 2 of well known form are supported, which levers are connected together at their hubs formed like wheels by means of flexible bands 3. The levers 2 support with their rollers 4 the fabric frame proper which comprises a row of vertical supports for the fabric rollers 9 and is balanced by means of the counterweight devices 5, 6, 7 and 8.

The outside fabric carrying support 10 of the fabric frame shown to the left in Fig. 1 consists of two vertical rods and is positively guided by upper and lower grooved rollers 11 and easily movable in a vertical direction. In like manner the fabric carrying support 12 shown to the extreme right in Fig. 1, consisting also of two vertical rods is guided vertically, likewise a middle fabric carrying support 13 which also consists of two vertical rods. These supports are all distinguished one from another only by the feature that they are constructed differently for the reception and support of the fabric rollers. The guiding rollers 11 are supported by the bearing brackets 14 which are secured firmly to two parallel horizontal longitudinal sliding carriers 15. These latter form a portion of the entire embroidery frame and can only be displaced in the horizontal direction upon stationary guiding rollers 16. The support 10 is provided at the lower part of its slotted guide for the reception of the roller 4: of the corresponding lever 2 with an adjusting bowl piece 17, controlled by the known sloping slides 18, 19 serving for the adjustment of the embroidery frame and actuated by the jacquard apparatus 20 in a well known manner, in order to adjust the embroidery frame to the required stitch point according to the control of the jacquard mechanism. The slotted guide having the bowl piece 17 of the support 10 is provided with a horizontal rack 21 which stands permanently in engagement with a vertical tooth shaft 22. Upon the same shaft are fixed higher up, that is to say, at the height of the two longitudinal carriers 15, two small drums 23, which each by means of two oppositely directed bands 24, 25 are connected with the longitudinal carriers 15 of the embroidery frame. The vertical shaft 22 is supported freely oscillatable in a bracket 26 and in a foot-step 2'? of the fixed frame 28 of the machine.

The driving motions of the jacquard apparatus are transmitted in the well known manner by the sloping slides 18, 19 to the bowl piece 17. To this end, the sloping slides 18, 19 are firmly connected to two respective racks 3O engaging with two corresponding pinions 29 of the jacquard apparatus 20, as it is well known in power transmitting devices of this kind, these two rack gears lying one behind the other and Fig. 1 showing only that on the front side. The vertical component motions are transmitted only to the vertical fabric carrying supports 10, 12, 13, that is, directly to the first, but to the two latter ones by means of the levers 2 and the traction bands 3. The horizontal component motions, also proceeding from the adjusting piece 17 are conveyed by the tooth rack 21 to the pinion shaft 22, whereby this latter is revolved more or less to the left or the right and displaces horizontally by means of the bands 24; and 25 the carriers 15 together with the supports 10, 12, 13. While, therefore, the vertical component motions are only carried out by the fabric carrying supports 10, 12, 13, the horizontal component motions are participated by the entirety of the em broidery frame, that is to say, by the longitudinal carriers 15 and the supports 10, 12, 13 guided vertically on these latter. Thereby, the longitudinal carriers 15 during their horizontal displacement are guided upon the rollers 16 which as may be seen in Fig. 2 are locally fixed upon a support 31.

In order to keep the fabric carrying sup ports as light as possible, the rods forming them are preferably made hollow. On the two outermost rods of the supports 10, 12 the fabric rollers 9 are supported by means of bracket bearings 33 (Fig. 2). These are sufficiently widely extended in order to admit of the whole shuttle mechanism 34 being able to be easily moved back. To the rods of the middle support 13 are attached the ordinary fabric roller tensioners 35 (Fig. 3).

The constructional example shown in Figs 4 and 5 is in the main similar to that already described. It is distinguished, however, from the previous one firstly by the feature that here the upright shaft 22 together with the parts dependent upon it is done away with. Moreover, in this construction the sloping slides of the automatic frame drive are avoided and the motion of the embroidery frame takes place from the jacquard apparatus, not at a single point of drive, but the two kinds of motion (the horizontal and the vertical components) are introduced also at separate points of drive. For this purpose the following device is invented: On the horizontal beam 32 are placed the rollers 16, which as in the first example support the longitudinal carriers 33, 39 of the embroidery frame horizontally displaceable. To a cross piece 40 which connects these longitudinal carriers there is connected the driving rack 41 of the automatic jacquard mechanism, which can be set in motion by the tooth wheel d2 of the jacquard shaft a3, in order to displace the longitudinal carriers 33, 39 together with the parts separated by them in the horizontal direction. The shaft l i of the jacquard mechanism from which the frame adjustments in height proceed, acts through its tooth wheel at?) upon a rack l6 which is sup ported in bearings i? and is displaceable in the horizontal direction, and has a slotted part 1-8 which is directed vertically. One of the frame support levers 36 which correspond in their construction and arrange ment to those set forth in the first example, and which like them, bear the vertical fabric supports 3. distributed over the machine (in the drawings only one of these is illus trated), is provided underneath with an arm 4%), the roller 49 of which engages with the slotted part 1f, therefore, the tooth rack 46 is displaced in the horizontal dircction, then the slotted part 4C8 acts upon the corresponding support lever 36 and thereby effects the adjustment in height of he fabric carrying supports 37, relative to the longitudinal beams or carriers 33, 39 to which the supports 37 are compulsorily guided in the vertical direction by guide eyelets fixed on said carriers.

In 6 a modification of the fabric carrying supports is illustrated which is adapted for more than two rows of embroidery, and where only two fabric rollers 50, 51 are arranged. If the material is stretched thereby, then both fabric rollers strive to approach one another which may have for a result that the vertical rod 52 bends between its guiding points and thereby seriously diminishes its free movability. In order to prevent this, there is interposed between the bracket bearings serving for the support of the fabric rollers a pressure stay 53 serving for the reinforcement of the whole and arranged in such a manner that it can be removed, whereby, when the material is stretched, the stay 53 prevents the above described injurious action. ll hen the several shuttle mechanisms 54- are moved out, the pressure stay 53 must also each time be removed.

In a similar manner, the fabric carrying support modification illustrated in Fig. 7 is Constructed, only that in this case, in addition to the fabric rollers 50, 51 thereare provided further two middle fabric rollers 55.

In the modification illustrated in Fig. 8 there is the above described troublesome removal of the pressure stay avoided, by the arrangement that the strengthening bar 56 which in this position acts as a drawbar is placed at the rear with regard to the bar 52 in order that it may not come in the way when the shuttle mechanisms 5% are moved out.

In Fig. 9 the fabric support modification shown in F ig. S is further developed inasmuch as, the projection of the bracket bearings for the fabric rollers 50, 51 being diminished, the fabric carrying support, nevertheless, not only permits of the moving out of the shuttle mechanisms 54, but at the same time permits of arranging middle fabric rollers. For this purpose the vertical guide rod 52 of the fabric carrying sup port is so divided that it shows a separate middle piece 57 serving at the same time for the support of the middle fabric rollers 55, which middle piece is normally connected by means of the sliding sleeves 58 with the end parts of the bar, but can be taken away in order to facilitate the easy moving out of the shuttle mechanisms. If the machine is embroidering with four rows then the middle piece 57 is used without intermediate fabric rollers, but the middle piece 57 is provided with two rollers for embroidering with only two rows.

As will be seen, the above described fabric carrying supports comprise each two guiding rods with or without strengthening rods, this arrangement being only shown by way of example as regards the number of such guiding rods.

What we claim is:

1. In embroidery machines, a fabric frame comprising at least one longitudinally movable ca *rier arranged lengthwise behind the fabric plane, guide means for allowing the same to move only in a horizontal direction,

several fabric carrying supports, distributed from distance to distance over the length of the movable carrier, supported independently from said carrier, but movably guided thereon in a vertical direction, means for supporting the fabric carrying supports independently from said carrier, means on said supports for carrying the fabric, and shifting means for shifting on the one hand the movable carrier together with the fabric carrying supports in a horizontal direction and on the other hand solely the fabric carrying supports ina vertical direction relatively to the said carrier.

2. In embroidery machines, a fabric frame comprising at least one longitudinally movable carrier arranged lengthwise behind the fabric plane, guide rollers for guiding the same only in a horizontal direction, several fabric carrying supports, distributed from distance to distance over the length of the movable carrier, supported independently from said carrier, but movably guided thereon in a vertical direction, means for supporting the fabric carrying supports independently from said carrier, means on said supports for carrying the fabric, shifting means for shifting the movable carrier together with the fabric carrying supports in a horizontal direction and shifting means arranged independently from said carrier to move the fabric carrying supports in a vertical direction relatively to the said carrier.

3. In embroidery machines, a fabric frame comprising two parallel longitudinally movable carriers, means for guiding the same only in a horizontal direction, parallel to each other, several fabric carrying supports supported independently from said carriers, but movably guided thereon in a vertical direction, means for supporting the fabric carrying supports independently from said carriers, means on said supports for can rying the fabric, shifting means for shifting the movable carriers together with the fabric carrying supports in a horizontal direction and shifting means arranged independently from said carriers to move the fabric carrying supports in a vertical direction rela tively to the said carriers.

el. In embroidery machines, a fabric frame comprising at least one longitudinally movable carrier arranged lengthwise behind the fabric plane, means for guiding the same only in a horizontal direction, several fabric carrying supports, distributed from distance to distance over the length of the movable carrier, supported independently from said carrier, grooved rollers mounted on the latter for vertically guiding the said fabric carrying supports on the movable carrier, so that the said supports are displaceable with it in the horizontal direction, while being movable independently from it in the vertical direction, means for supporting the fabric carrying supports independently from said carrier, shifting means for shifting the movable carrier together with the fabric carrying supports in av horizontal direction and shifting means arranged independently from said carrier, to move the fabric carrying supports in avertical direction relatively to the said carrier.

5. In embroidery machines, a fabric frame comprising at least one longitudinally movable carrier, means for guiding the same in a horizontal direction, several fabric carrying supports supported independently from said carrier, but vertically guided thereon, a jacquard apparatus for automatically moving the fabric frame and interconnecting means between said jacquard apparatus and the fabric frame, comprising a lever mechanism for shifting the fabric carrying sup ports in the vertical direction and an upright shaft With toothed gear for shifting the movable carrier in the horizontal direction.

6. ln embroidery machines, a fabric frame comprising at least one longitudinally movable carrier, means for guiding the same in a horizontal direction, several fabric carrying supports supported independently from said carrier, but movably guided thereon in a vertical direction, a jacquard apparatus for automatically moving the fabric frame and interconnecting means between said jacquard apparatus and the fabric frame, comprising a lever mechanism for shifting the fabric carrying supports in the vertical direction and an upright shaft with toothed gear for shifting the movable carrier in the horizontal direction, said gear shaft being connected by flexible tractive members With the movable carrier.

7. In embroidery machines, a fabric frame comprising at least one longitudinally movable carrier, arranged lengthwise behind the fabric plane, means for guiding the same in a horizontal direction, several. fabric carrying supports, distributed from distance to distance over the length of the movable carrier, supported inde Jendently from said movable carrier, but movably guided thereon in a vertical direction, said supports comprising each several vertical guide rods connected together, means for supporting the fabric carrying supports independently from said carrier, and shifting means for moving the fabric frame according to tWo stitch component directions in such. a manner that the movable carrier and the fabric carrying support system are moved respectively in the horizontal and the vertical clirection.

8. In embroidery machines, a fabric frame comprising at least one longitudinally movable carrier arranged lengthwise behind the fabric plane, means for guiding the same in a horizontal direction, several fabric carrying supports, distributed from distance to distance over length of the movable carrier,

' supported independently from said movable carrier, but movably' guided thereon in a vertical direction, said supports being counterbalanced by balancing means, and shifting means for moving the fabric frame according to two stitch component directions in such a manner that the movable carrier and the fabric carrying support system are moved respectively in the horizontal and the vertical direction. a

9. in embroidery machines, a fabric frame comprising a plurality of-upright fabric carrying supports, movable in an upright direction, a supporting lever mechanism for the fabric carrying supports, means connected to said lever mechanism for moving the fabric carrying supports in an upright direction, connecting means for said fabric carrying supports, independent from said supporting lever mechanism, to couple them together for any movement in a horizontal direction, and drive means for said last mentioned connecting means to move the fabric carrying support system in a horizontal direction.

10. In embroidery machines, a fabric frame comprising at least one longitudinally movable carrier, means for guiding the same in a horizontal direction, several fabric carrying supports, means for supporting said fabric carrying supports independently from said movable carrier, means to guide same vertically thereon, a jacquard apparatus for automatically moving the frame, and interconnecting means between said j ac quard apparatus and the fabric frame to move jointly several. of the fabric carrying supports in the vertical direction and upright driving means for shifting the longitudinally movable carrier in the horizontal direction.

In Witness whereof We have hereunto signed our names this 29th day of January 1913, in the presence of two subscribing Witnesses.

MORRIS SCHOENFELD. BRUNO WETZSTEIN.

Witnesses CAnsAn ZOAB, FRIEDRICH STEINER.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). C. 

